Product Overview
The Allen-Bradley 2711P-K4C20A is a compact operator interface terminal from the PanelView Plus 400 series. Despite its small 3.5-inch display, this unit delivers color graphics for clear data visualization in demanding industrial environments. Designed for keypad input, the 2711P-K4C20A accepts AC power from 100 to 240 Volts AC at 50 to 60 Hertz, making it versatile for global installations.
This control system integrates a powerful display, operator input, logic module, and memory in a single unit. With 64 MB of memory, it can store substantial amounts of industrial data. The 2711P-K4C20A supports both Ethernet and RS-232 communication ports, enabling flexible connectivity to control systems such as ControlLogix and CompactLogix controllers.
Technical Specifications
| Specification |
Detail |
| Manufacturer |
Rockwell Automation |
| Brand |
Allen-Bradley |
| Part Number |
2711P-K4C20A |
| Product Line |
PanelView Plus 400 |
| Display Size |
3.5 inch |
| Display Color |
Color |
| Input Type |
Keypad |
| Communication |
Ethernet and RS-232 Ports |
| Input Power |
AC |
| Memory |
64 MB |
| Series |
A, B, C, D, E |
| Product Lifecycle Status |
Discontinued/Obsolete |
The 2711P-K4C20A features color/grayscale displays producing 18-bit color and 32 levels of gray. The RS-232 port supports DH-485 serial, multi-vendor drivers, and DF1 serial. The Ethernet port supports EtherNet/IP and Ethernet options using KEPServer drivers. For base units with a network interface, optional DH+/DH-485 or ControlNet communication units can be added.
Real-World Applications
The Allen-Bradley 2711P-K4C20A is ideal for applications requiring a compact yet powerful operator interface. Common uses include:
-
Machine Control: Monitor and control production equipment, providing operators with real-time status and process data.
-
Process Monitoring: Display animated graphics and text to visualize machine states, improving operational awareness.
-
System Integration: Connect to ControlLogix and CompactLogix controllers for seamless data exchange and control.
Given its discontinued status, the 2711P-K4C20A serves as a reliable replacement for existing systems, ensuring continuity without costly redesigns.
Installation & Setup
Proper installation is critical for safe and reliable operation. Follow these guidelines:
- Observe all NFPA guidelines and local, state, and national codes.
- Only professional electricians should perform wiring.
- Connect the device to its own turn-off circuit.
- Protect input power with a fuse or circuit breaker rated not exceeding 15A.
- Route input power separately from communication lines; if they must cross, cross at right angles.
- Mount communication lines on the same channel as low-level DC I/O lines (below 10 Volts) when necessary.
- Properly ground cables to reduce electromagnetic interference (EMI).
Maintenance & Reliability
Although the 2711P-K4C20A is discontinued, regular maintenance ensures extended service life. Inspect the unit periodically for signs of wear, especially the keypad and display. Keep the enclosure clean and free from dust and moisture. Verify that all connections remain secure and that the power supply stays within specified limits. Implementing a routine maintenance schedule minimizes downtime and maximizes return on investment.
Compatibility & Integration
The 2711P-K4C20A offers robust communication options. The RS-232 port supports DH-485, multi-vendor drivers, and DF1 serial. The Ethernet port supports EtherNet/IP and Ethernet via KEPServer drivers. Optional communication modules enable DH+, DH-485, or ControlNet connectivity. This flexibility allows integration into diverse automation architectures, including those using ControlLogix and CompactLogix controllers.
Buying Guide
When purchasing the Allen-Bradley 2711P-K4C20A, verify the exact part number and condition. As a discontinued item, confirm availability and consider stocking spare units to avoid future downtime. PLC Source PRO offers a reliable supply of industrial automation spares, including this model. Ensure you have the necessary cables and communication modules for your specific application.